MikroTik CRS504-4XQ-IN A 4x 100GbE Switch at Under 45W

necr

Active Member
Dec 27, 2017
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Cool! Is the Marvell chip doing any interesting stuff or just dumb switching?

P.S remembering MX204 with same 400G throughput, which was all the rage 5 years ago. Now it's a desktop switch (not Trio, of course) :D
 

cactus

Moderator
Jan 25, 2011
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@i386 The table on page two mentions "2 stacking ports of 100GbE". So, maybe 8x 25Gbit SerDes in total on the chip.
 

glow

New Member
Mar 22, 2022
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If the totals add up generously, that still is 12x25GbE, which is 4 short. Unless if there is some sort of line card converter (similar to PIPE) that adapts the many 10GbE to 4x25GbE.

Either that, or I am badly missing something obvious.
 

victhor393

New Member
Feb 13, 2022
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Maybe that product briefing is missing some detail. As always, documentation held under confidentiality agreements rears its ugly head over those trying to better understand what goes on inside the magical black boxes...

Note how it has no mention of: buffer size, TCAM size, fabric bandwidth, and apparently, even the SERDES configurations aren't correct. Shame...
 

Patrick

Administrator
Staff member
Dec 21, 2010
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Also @cactusand @i386 the switch chip does support 4x 100GbE as a supported port configuration:Marvell Product Selector Guide 2020-07 Prestera-DX4310.jpg